The database can assign sequence Numbers to each node so that it knows the position of each node and can compare the document order of two nodes in constant time.
数据库可以为每个节点分配顺序号,这样就知道每个节点的位置,可以在常数时间内比较两个节点的文档顺序。
I now would like to write down, in most general form the equation for the position and the velocity as a function of time for a one-dimensional motion whereby the acceleration is constant.
我来把更一般的形式,写出来吧,在一维空间中,位置和速度,作为时间函数的,一般形式,这里的加速度是一个常数。
A current cycle iterative learning algorism is presented in this paper for the periodic position relevant nonlinear disturbance in the constant speed state of turntable.
本文针对高精度转台恒速工作状态时存在的位置相关周期非线性扰动,提出了一种闭环迭代学习算法。
And since we are not expecting the mass of the particle to change, what we really are saying is the uncertainty in its velocity times the uncertainty in its position is greater than the ratio of the Planck constant divided by 2 pi.
因为我们不期望,粒子质量发生变化,我们说的是,它速度的不确定度,乘以它位置的不确定度,比普朗克常量,除以2除以圆周率要大。
So, this is the most general position for a particle of constant acceleration, a.
这是一个加速度为a的匀加速质点,位移的最一般的表达式
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